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Self-Service / How It Works

The Easiest Way to Hire Expert AI Trainers & Data Labelers

Post a job, receive pre-vetted applicants, and hire talent that works in your existing tools.
Post a Job for Free Large Project? → Managed Service
Trustpilot
OpenTrain talent search interface showing 2,184 qualified STEM AI Trainers with Biology and Physics specialist groups available to invite. Abstract image of half-globe, half-brain sphere. OpenTrain integrates with any data labeling tool - Label Studio, Argilla, CVAT, Labelbox, V7, Roboflow, Datasaur, or your custom platform.
#1 AI Trainer Network
Project-Specific AI Screening
Built-in Team Communication
Simple & Secure Payments
OpenTrain job posting interface showing role selection, domain filters including Math, Physics, Medical, Legal, and more, language options, and integrations with any labeling tool.
01

Post Your Job to 100,000+ Experts

Define your role, domains, languages, and tooling requirements. Your job goes live to our global network of pre-vetted AI Trainers and Data Labelers, and qualified applicants start applying.
Go live in minutes with a simple, guided job form
Reach specialists across 130 countries and 70+ languages
Specify exact domains, seniority levels, and tool experience
Post a Job for FreeLarge Project? → Managed Service
02

Review Pre-Screened Applicants

Every applicant completes an AI interview that screens for domain expertise, language proficiency, and practical problem-solving. You receive a ranked shortlist with interview scores so you can skip first-round screening and focus on hiring.
See interview scores, qualifications, and tool experience at a glance
Filter by domain match, seniority, language, and availability
Message candidates and request work samples directly in OpenTrain
Post a Job for FreeLarge Project? → Managed Service
OpenTrain proposals interface showing pre-screened AI Trainer groups with interview scores, including Econometrics, Finance, and Computer Vision specialists with options to hire or invite.
OpenTrain interface showing AI Trainers and Data Labelers being invited into any labeling tool, with options including Labelbox, SuperAnnotate, Label Studio, Argilla, CVAT, V7, and custom tools.
03

Hire Into Your Existing Tools

Send offers, onboard hires, and invite them into any labeling platform or internal tool. No migrations, no vendor lock-in. You keep full control.
Works with any off-the-shelf tool, open-source platform, or custom internal stack
Scale your project without switching tools
Manage permissions and access from your own platform
Post a Job for FreeView All Integrations
04

Manage Your Team in One Place

Keep your project organized with built-in messaging, live instruction editing, and team communication. Update guidelines, answer questions, and keep everyone aligned without juggling external tools.
Edit and publish instruction updates that reach your entire team instantly
Message individuals or groups and maintain a searchable project history
Centralize FAQs, onboarding materials, and policy documents
Post a Job for FreeLarge Project? → Managed Service
OpenTrain project workspace showing project instructions editor with real-time collaboration and a project channel with 55 members for team communication.
OpenTrain payment interface showing flexible payment options including pay per hour, pay per task, and fixed price, with Stripe integration for paying AI Trainers and Data Labelers globally.
05

Pay Your Team Directly

Set your own rates and pay AI Trainers and Data Labelers directly through OpenTrain. Choose hourly, per-task, or fixed-price payments. No middlemen, lower costs, and fair pay for your team.
Pay per hour, per task, or fixed price depending on your project
Fund milestones, approve work, and release payments in one place
Pay your entire team at once with simple bulk payments
Post a Job for FreeLarge Project? → Managed Service
Get Started

Post a Job and Start Hiring Today

OpenTrain connects you with pre-screened AI Trainers and Data Labelers for any tool. Publish your role, review qualified applicants, and hire directly at rates you set.
Post a Job for Free Large Project? → Managed Service
Solutions

Find Talent For Any AI Data Need

LLM & Agents
Find vetted domain experts to train and evaluate your LLMs, driving higher quality and more reliable model behavior.
LLM Evaluation Red Teaming Hallucination Audits RLHF & Preference Data Supervised Fine-Tuning Code Generation Review Function Calling Computer Use Agent Training Reasoning Step Verification Multilingual AI Training Reasoning Problem Creation Agent Simulations RL Environment Design
View All LLM & Agent Solutions
Structured Data Labeling
Hire experienced annotators to deliver precise, consistent labels at scale across vision, text, audio, and 3D.
Document Annotation Image Annotation Segmentation Video Annotation Text Annotation Speech and Audio Labeling Time Series Annotation Point Cloud Annotation Medical Imaging Annotation Satellite Imagery Annotation
View All Data Labeling Solutions
Integrations

Hire Experts For Any Data Labeling Tool

Hire from the #1 network for AI Trainers and Data Labelers. Post a job and bring pre-vetted experts into any tool you use.
Your Custom Tool
Custom
Label Studio
Multimodal
Roboflow
Vision
AWS SageMaker
Multimodal
CVAT
Vision
Scale Studio
Multimodal
SuperAnnotate
Multimodal
Encord
Vision
Dataloop
Multimodal
Kili Technology
Multimodal
Supervisely
Vision
V7 Darwin
Vision
Datature
Vision
Snorkel AI
Programmatic
Argilla
Text
Datasaur
Text
Prodigy
Programmatic
Get Started

Join the #1 Platform for AI Training Talent

Where top AI builders and expert AI Trainers connect to build the future of AI.
Self-Service
Post a Job
Post your project and get a shortlist of qualified AI Trainers and Data Labelers. Hire and manage your team in the tools you already use.
Create Account & Post a Job
Managed Service
For Large Projects
Done-for-You
We recruit, onboard, and manage a dedicated team inside your tools. End-to-end operations for large or complex projects.
Learn About Managed Service
For Freelancers
Join as an AI Trainer
Find AI training and data labeling projects across platforms, all in one place. One profile, one application process, more opportunities.
Join Now